They are great!I didn't think it's water as I have a water seperator and never get any water in it ----------I came up with a temporary fix , I bungie corded a 1/3 sheet sander ( with no paper ) to the bottom back of the cabinet and it is doing the job to keep it shaken down , I don't why I never had a blast box sooner in life ---------another blasting tool I picked up is a hand held pistol looking thing called a spot blaster that has a bag on the bottom full of grit and rubber nozzzles that only blast a controllled area , Sears has one called the Vacula that I had been looking at , while at the harbor freight store the other day they had one like it for $9.99 , they do make cheap stuff but i gave it a try , from what I wanted it for it works great , I have a aluminum utillity trailer that I am refinshng and there are a couple of hundred screws that hold the panels together that are steel , they are rusted nd need to be cleaned before painting , I did about 50 in 10 minutes , put the nozzle over the screw and about 15 seconds and it looks new and only does the screw and not the surrounding area
The problem is without a cabinet you get COVERED in media. I have a few pictures of myself after blasting 5 wheel rims, i was covered in black sand!!!. Takes so long to clean up after that.....